private void btnAdd_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
frmMonHoc_Add frm = new frmMonHoc_Add();
frm.ShowDialog();
frmMonHoc_Load(sender, e);
}
private void btnCopy_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
int focus = grvMonHoc.FocusedRowHandle;
string ID = grvMonHoc.GetRowCellValue(focus, grdcolID).ToString();
MonHoc mh = monHoc.GetMonHocByID(ID);
frmMonHoc_Add frm = new frmMonHoc_Add();
frm.khoi = (int)mh.Khoi;
frm.mamon = mh.MaMonHoc;
frm.tenmon = mh.TenMonHoc;
frm.ShowDialog();
frmMonHoc_Load(sender, e);
}